GE THEF134020 Circuit Breaker, 20A, 3-Pole, 480V

The GE THEF134020 circuit breaker is a rugged, three-pole protective device built for demanding industrial electrical service, maintenance, and replacement projects. As part of GE's On Circuit Breaker TEF series, this 20 A, 480 V unit delivers reliable interruption for three-phase systems in tough environments. Use the part number THEF134020 to confirm compatibility with your equipment and panel layout.

Why this GE TEF 3-pole breaker stands out

• Three-pole design provides balanced protection across all phases in a 480 V service.
• 20 A rating tailored for mid-range loads common in industrial control circuits and machinery.
• Designed to integrate with GE TEF series panels and components, offering a seamless upgrade or replacement path.
• Part number THEF134020 serves as the key compatibility reference—verify fit by part number and application requirements.

Practical use scenarios

• New installations in three-phase 480 V networks that require dependable circuit protection.
• Maintenance and replacement of aging GE TEF breakers in industrial control panels and service equipment.
• Retrofits where a 3-pole, 480 V device is needed to safeguard three-phase loads with a 20 A circuit.

Compatibility and installation tips

• Verify fit by part number and application requirements.
• Need help matching a part number or confirming compatibility? Message us and we'll help.

With the GE THEF134020, you’re choosing a dependable, industry-grade solution tailored for industrial service and maintenance workflows. Its TEF-series heritage means it’s designed to perform consistently in demanding environments, providing clear protection for your 480 V three-phase electrical systems.